Summary
Overview
Work History
Education
Skills
Projects
Timeline
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Haesun Zoe Lee

Alpharetta,GA

Summary

Offering solid understanding of embedded systems and keen interest in microcontroller programming. Brings ability to quickly acquire in-depth knowledge of firmware development and debugging techniques. Ready to use and develop programming and hardware interfacing skills in Firmware Engineer role.

Overview

8
8
years of professional experience

Work History

Firmware Engineer

Cognosos
01.2023 - Current
  • Firmware development for the Healthcare Staff Safety Duress System, designed to improve staff safety in healthcare environments by enabling real-time location tracking and emergency alerts.
  • Developed and optimized embedded software for battery-powered IoT devices, focusing on low-power consumption, wireless communication, and sensor integration.
  • Implemented protocols for reliable BLE and 915 MHz communication to ensure seamless connectivity within hospital environments.
  • Engineered low-level drivers and communication protocols, including I2C, SPI, BLE, and 915 MHz radio transmission, optimizing performance for low-power, battery-operated IoT devices.
  • Developed and maintained custom bootloader and CPU intercommunication firmware, ensuring robust system updates and seamless integration across embedded subsystems.
  • Implemented LED and button drivers for device feedback and user interaction, ensuring reliability and responsiveness under varied operational conditions.
  • Wrote technical documentation and provided training materials for deployment and maintenance teams.

Software Developer Intern

SDTECH
05.2021 - 08.2021
  • Designed and developed an IoT device using ESP32 to autonomously sense environmental data and control connected systems, leveraging Object-Oriented Programming (OOP) principles in C++.
  • Implemented web and mobile applications with Flutter for the front-end and AWS for the back-end, enabling seamless user interaction and real-time data visualization.
  • Engineered a remote water quality monitoring system in OOP Embedded-C, allowing users to control and monitor water parameters from a distance.
  • Built and deployed a responsive website using JavaScript and CSS, ensuring user-friendly navigation and functionality.

Software Developer Intern

Korea Engineering Technology Research Institute (KETRI)
05.2016 - 08.2016
  • Developed and delivered a Coding education program targeted at students, focusing on foundational programming concepts and hands-on learning.
  • Designed and built an educational website using JavaScript and CSS, providing a user-friendly interface for students to access tutorials, assignments, and progress tracking.
  • Collaborated with educators to tailor the curriculum to different skill levels, ensuring an engaging and effective learning experience.

Education

Bachelor of Science - Computer Engineering

Georgia Institute of Technology
Atlanta, GA
12.2022

Bachelor of Science - Computer Science

Georgia Institute of Technology
Atlanta, GA
05.2020

Skills

    Programming Languages

  • C, C, Java, Python, ASM, Dart, SQL

    • Software Tools

  • Flutter, Android studio IDE, Silicon Labs IDE, GitHub, AWS, MySQL Workbench
  • Microcontroller programming
  • Embedded Systems Programming

    Hardware

  • Silicon Labs, Arduino, Raspberry Pi, ARM MBED microcontroller, FPGAs, NI LabVIEW, Joulescope, Oscilloscope

    • Platforms

  • Linux, Windows, MacOs

    • Languages

  • English(Fluent), Korean(Native)

Projects

Face Recognition Attendance IoT – Embedded System Design Final Project
  • Designed an IoT device that recognize student’s face and update the name on the attendance server using OpenCV, machine learning algorithm, and socket programming using OOP Python.

Tiny News - Mobile Apps and Service Final Project 

  • By using Flutter, developed the full-stack web and mobile application that summarize the news article using MLNewsCatcher API search endpoint to obtain the summarized news data.

Remote Recite IoT Device – Junior Design Project  

  • Developed an IoT device using Raspberry Pi and embedded device that manages the server and receives the commands from the director server. Implemented a code in Python that is responsible for sending and decoding command files to the server and process incoming files using TCP socket programming.

Timeline

Firmware Engineer

Cognosos
01.2023 - Current

Software Developer Intern

SDTECH
05.2021 - 08.2021

Software Developer Intern

Korea Engineering Technology Research Institute (KETRI)
05.2016 - 08.2016

Bachelor of Science - Computer Engineering

Georgia Institute of Technology

Bachelor of Science - Computer Science

Georgia Institute of Technology

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Haesun Zoe Lee